中国电机工程学报2017，Vol.37Issue(5)：1333-1340,8.DOI:10.13334/j.0258-8013.pcsee.152702
输电线路弧光高阻接地故障单端测距分析
Single-end Fault Location for High Impedance Arc Grounding Fault in Transmission Line
摘要
Abstract
Arc high-impedance grounding faults are frequently occurred in transmission lines with different fault reasons,such as insulator flashover,lightning or fire.The nonlinear and ~gh impedance characteristics of arc produce directly the poor performance of single-end fault location algorithm in line.Traditional dynamic arc models are mostly based on the principle of heat balance,and it is usually expressed with real time iterative computation of differential equations,hence it cannot be directly adopted in the impedance based fault location algorithm.In response to this question,based on the fact that air discharging of transmission line mostly occurs in the condition of short gap under normal air pressure,a novel dynamic arc model and corresponding fault location algorithm were proposed based on the Thompson theory in this paper.The accuracy of the novel algorithm was tested with different power system operation status and real recorded data in field.关键词
输电线路/弧光高阻接地/汤逊原理/对数电弧模型/单端测距Key words
transmission line/arc high impedance grounding/Thompson theory/logarithmic function arc model/Single-end fault location分类
信息技术与安全科学引用本文复制引用
王宾,倪江,王海港,谢民..输电线路弧光高阻接地故障单端测距分析[J].中国电机工程学报,2017,37(5):1333-1340,8.基金项目
国家自然科学基金项目(51120175001,51477084) （51120175001,51477084）
北京市自然科学基金项目(3152016) （3152016）
电力系统国家重点实验室自主课题(SKLD16Z07).Project Supported by National Natural Science Foundation of China (51120175001,51477084) （SKLD16Z07）
Project Supported by Natural Science Foundation of Beijing (3152016) （3152016）
Project Supported by Fund from State Key Laboratory of Power System (SKLD16Z07). （SKLD16Z07）
